Liquid-sampler.



C. J. HAGGSTROM.

LIQUID SAMPLER.

APPLICATION FILED MAY 16. I918.

1,296,794. Patented Mar. 11,1919.

2 SHEETSSHEET 1- JI'J. $1.1.

IIETM 5 C. J. HAUGMROM.

LIQUID SAMPLER.

APPLICATION FILED MAYIG, IBIB.

1 ,296,794:. Patented Mar. 11, 1919 2 SHEETSSHEET 2- CHARLES J.HAGGSTROM, OF WARREN, PENNSYLVANIA.

LIQUID-SAMPLER.

Specification of Letters Patent.

Patented Mar. 11, 1919.

Application filed May 16, 1918. Serial No. 235,042.

To all whom it may concern:

Be it known that I, CHARLES J. HAGG- STROM, a citizen of the UnitedStates, residing at Warren, in the county of Warren and Stateof'Rennsylvania, have invented certain new and useful Improvements inLiquid-Samplers; and I do declare the follow ing to be a full, clear,and exact description of the invention, such as .will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to liquid samplers, and it relates moreparticularly to an improved automatically closing sampler.

'One of the objects of this invention is to greatly improve and simplifydevices of this character;

A further object is to eliminate springs and other parts that easilybreak or get out of repair; v

A further object is to provide for preventing the leakage that occurs inconsequence of the wearing of the valves or closures employed in otherknown devices of this character;

Another object is to provide a device of this character which isthoroughly practical and may be manufactured at a comparatively lowcost;

Other objects and advantages may become apparent to persons who read thefollowing details of description in connection with the accompanyingdrawings, in which:

Figure 1 is a side elevation of my improved sampler suspended in aliquid receptacle;

Fig. 2 is a vertical sectional View, the parts being in the tripped andclosed position at the bottom of the tank, ready to be withdrawn withits liquid contents;

Fig. 3 is a View similar to Fig. 1, but showing the relatively shortlatch-shifting rod replaced by a longer latch-shifting rod;

Fig. 4 is an enlarged fragmental sectional view more clearlyillustrating the principal working parts of the device.

Fig.- 5 is a detail view: of the lower end of the device, the line ofvision being at riggit angles to the line of vision of Fig. 4; an

Fig. 6 is a horizontal sectional view along the line 66 of Fig. 4.

Referring to these drawings in detail, in which similar referencecharacters correspond with similar parts throughout the several views, aglass tube 7 is supported by a frame which consists of a lower member 8,an upper member 9 and vertical rods 10. Each of the members 8 and 9 isprovided with an annular depression or seat in which the ends of thetube 7 are seated on suitable packing elements, and each of these framemembers 8 and 9 is provided with a hearing 11 and 12 respectively. Theupper and lower ends of the tube are normally open during its descentthrough 'the liquid to be sampled, so that the liquid within the tube issubstantially of the same consistency as the liquid surrounding thetube. The lower end of the tube is provided with a closure seat 13 whichis formed on the frame memher 8. One or both of the rods 10 may beprovided with a measuring scale, or said measuring scale may beotherwise applied to the tube so as to indicate measurements of thestratas of liquid in the tube.

The tube 7 is supported and moved vertically by means of a normallyvertical rod '14, this rod being supported by a rod 15,

through the medium of an arm 16 which is rigid with the rod 14. At thelower end of the rod 14 is fixedly secured a closure or horizontal plate17 which is provided with a packing disk 18, the latter being adapted tofit snugly against the closure or seat 13 and to cooperate therewith forpreventing or allowing egress of the liquid through the lower end of thetube. The tube 7 and rod 14 have longitudinal and rotary movement groove19 constitutes a helical element which cooperates with a'bOlt or studfor effecting a quarter turn of the rod with relation to the tube 7during the relative longitudinal movement of these-elements 7 and 14.

In order that the rod 14 may support the tube 7 and its frame 8910 inthe position illustrated in Figs. 1, 3, 4. 5,.and 6, I

' provide a latch 21 having a hook 22 which engages with the lowersurface of the frame element 11,-this latch being pivotally mounted at23 on a collar 26L which is fixed on the rod 14 by means of a set screw25. The

latch 21 is provided with an eye 26 through.

which a cord or cable may be passed, and if desirable, the hook 22 maybe released from the bearing 11 by drawing the eye 26 upward. However,as it is usually desirable that the device be automatic in itsoperation, I provide a rod or latch-shifting element 27 which ispivotally connected at 28 to the latch 21 and depends therefrom; the

lower end of the rod 27 extending below the lower end of the rod ,14 soas to be in posltion to strike and be arrested by the bottom of theliquid receptacle. The lower end portion of the rod 27 is preferablyguided by an opening 29 in the closure 17, the rod 27' being free toreciprocate through the opening 29. A rod 30 is interchangeable with therod 27 so as to facilitate the automatic taking of samples at difierentlevels in the receptacle, each of these .rods being pivotally connectedat 28 in the same manner as the rod 27 is connectible, as clearlyillustrated in Fig. 3. However, when the rod" 27 is in use, the rod 30is preferably carried by supporting elements 31 and 32 of thetube-carrying frames. The lower end of the rod 30 is preferably providedwith a screwthreaded connection 33 which prevents its disengagement andloss, and also cooperates with the rods 10 for stiffening the frame.

In operation the device is lowered into a liquidreceptacle, by means ofthe rod, wire or cord 15, the closure 17 being out of longitudinalalinement with the tube 7, as more ,clearly shown in Fig. 6 so that theliquid en-' by means of'the helical groove 19 and stud 20 until theclosure disk-18 is snugly seated against the closure seat 13; and nowupon drawmg' the element 15 upward, the valve closure 18' cooperateswith the elements 14, i5

ment of my invention very minutely, it is not intended to limit myinvention to these exact details of construction and arrangement ofparts, but I am entitled ,tdmake changes within the scope of theinventive idea disclosed in the foregoing description and. followingclaims.

What I claim as my invention is:

1. A liquid sampler comprising a tube, a rod having a helicalelementnthereon', a closure element carried by said rod, meanssupporting said tube and being movable along said rod, and meanscooperative with said helical element and with the first said a means soas to eflect the closing of an end of said tube by a rotary movement ofsaid closure element while the tube moves downward'into contact withsaid closure element.

2. A liquid sampler comprising a tube, a rod having a helical elementthereon, a closure element carried by said rod, means supporting saidtube and being movable along said rod, means on said rod for detainingthe first said means and operable to release the latter and therebypermit its movement along said rod, and means cooperative with saidhelical elementa-n'd with the first said means so as to effect theclosing of an end of said tube by said closure at the termination ofsaid movement.

3. A liquid sampler comprising a rod having' a helical element, meansfor supporting said rod in a substantially vertical position and forlowering said rod into a liquid receptacle, a tube supported bysaid rodand adapted to have rotary and longitudinal movement relative to therod, aclosure fixed on said rod, a latch pivotally secured to said rodand being cooperative therewith to hold said tube in spaced relationtosaid closure and out of longitudinal alinement with the latter, meansfor moving thelatch and thus allowing said tube to descend by gravityalong said rod, and means cooperative with said helical element forcausing said rotary and longitudinal movement and thus efi'ecting theclosing of one end of the tube by said closure.

4. A liquid sampler comprising a rod having a helical element, means forsupporting said rod in a substantially vertical position and forlowering said rod into a liquid receptacle, a tube supported by said rodand adapted to have rotary and longitudinal movement relative to therod, a closure to hold said tube in spaced relation to said closure andout of longitudinal alinement with the latter, a rod depending from saidlatch and operable by its contact with the bottom of the receptacle soas to move the latch and thus allow said tube to descend by gravityalong the first said rod, and means 10 cooperative with said helicalelement for causing said rotary and longitudinal movement and thuseffecting the closing of one end of said tube by said closure.

In testimony whereof I have hereunto set my hand.

CHARLES J. HAGGSTROM.

Witnesses:

ROSE H. DAvls, W. H. 'Amm.

